# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.agf">OHARA Zemax catalog 2017-11-30</a> (obtained from <a href="http://www.ohara-inc.co.jp/en/product/optical/list/">http://www.ohara-inc.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf">OHARA glass data sheets</a>
COMMENTS: |
    
DATA:
  - type: formula 2
    wavelength_range: 0.3 2.4
    coefficients: 0 1.97039844 0.0155780448 0.520330498 0.0632642123 1.30696186 142.045097
  - type: tabulated k
    data: |
        0.370 1.1518E-05
        0.380 4.4442E-06
        0.390 1.7995E-06
        0.400 8.3195E-07
        0.420 2.6057E-07
        0.440 1.3565E-07
        0.460 8.8925E-08
        0.480 5.7730E-08
        0.500 3.5972E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 2.8691E-08
        1.400 5.5844E-08
        1.600 8.9440E-08
        1.800 2.1649E-07
        2.000 4.0295E-07
        2.200 8.4280E-07
        2.400 1.6340E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.76e-05 0.0 0.0 0.0 0.0 0.0
    nd: 1.922864
    Vd: 21.288699
    glass_code: 923213
    glass_status: preferred
    density:
      - value: 6050
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.9e-06
      - temperature_range: 293 573
        value: 1.01e-05
    dPgF: 0.0204
    resistance:
        acid: 53.4
        phosphate: 4.0